CN117459492A - Dial-up networking system and related methods, apparatus, devices and media - Google Patents

Dial-up networking system and related methods, apparatus, devices and media Download PDF

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Publication number
CN117459492A
CN117459492A CN202311321703.XA CN202311321703A CN117459492A CN 117459492 A CN117459492 A CN 117459492A CN 202311321703 A CN202311321703 A CN 202311321703A CN 117459492 A CN117459492 A CN 117459492A
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CN
China
Prior art keywords
dialing
client
decryption
encryption
request
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CN202311321703.XA
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Chinese (zh)
Inventor
刘沅畅
严皓
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Priority to CN202311321703.XA priority Critical patent/CN117459492A/en
Publication of CN117459492A publication Critical patent/CN117459492A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/10—Mapping addresses of different types
    • H04L61/106—Mapping addresses of different types across networks, e.g. mapping telephone numbers to data network addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Abstract

The embodiment of the invention provides a dial-up networking system, and a related method, device, equipment and medium, wherein the system comprises a dial-up client side, an encryption and decryption platform and an authentication server, wherein the dial-up client side is provided with a dialer filter layer driver; the client is used for sending out a first dialing request; the dialer filter layer driver is used for intercepting and modifying the first dialing request to obtain a second dialing request and sending the second dialing request to the encryption and decryption platform; the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and the authentication server is used for opening the internet port for the dialing client when the dialing client passes the authentication. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.

Description

Dial-up networking system and related methods, apparatus, devices and media
Technical Field
The present invention relates to the field of dial-up networking, and in particular, to a dial-up networking system, and related methods, apparatuses, devices, and media.
Background
In the current Authentication and internet surfing environment, a user can surf the internet in a dialing mode through a Point-to-Point Protocol Over Ethernet (Point-to-Point protocol over ethernet), and a server realizes the effect of user Authentication and internet surfing through an AAA (Authentication), authorization and Accounting (Accounting) system.
PPPOE is a network tunneling protocol that encapsulates a point-to-point protocol in an ethernet framework, and because PPP (Point to Point Protocol, point-to-point protocol) protocol is integrated in the protocol, the PPPOE realizes functions such as authentication, encryption, and compression, which cannot be provided by conventional ethernet, and can be used in a protocol system in which an ethernet protocol, such as a cable modem and a digital subscriber line, provides access services to a user.
In the dialing authentication process, a user dials and surfing the internet in a PPPOE mode, and an authentication request is provided for a service provider; theoretically, this process should be one user initiating authentication using an account number, then obtaining authorization and starting billing; however, in practical application, dial-up networking is often initiated through a router, so that all computers connected in series behind the router pass authentication together, which is not beneficial to billing statistics of a server.
Disclosure of Invention
In view of the foregoing, it has been discovered that a dial-up networking system, and associated methods, apparatus, devices, and media, are provided that overcome or at least partially solve the aforementioned problems, including:
a dial-up internet system comprises a dial-up client side, an encryption and decryption platform and an authentication server, wherein the dial-up client side is provided with a dialer filter layer driver;
the dialing client is used for sending out a first dialing request; the dialer filter layer driver is used for intercepting and modifying the first dialing request to obtain a second dialing request and sending the second dialing request to the encryption and decryption platform;
the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at the authentication server based on the first decryption information;
the authentication server is used for opening a network access port for the dialing client when the dialing client passes the authentication.
Optionally, a plurality of encryption and decryption algorithms are stored in the encryption and decryption platform;
the encryption and decryption platform is used for generating a random character string when decrypting to obtain the first decryption information, wherein the random character string corresponds to an encryption and decryption algorithm; transmitting the random character string to the dialing client;
The dialing client is used for sending a third dialing request to the encryption and decryption platform by using an encryption and decryption algorithm corresponding to the random character string; the dialer filter layer driver is used for intercepting and modifying the third dialing request to obtain a fourth dialing request and sending the fourth dialing request to the encryption and decryption platform;
the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and sending the second decryption information to the authentication server for authentication;
the authentication server is used for authenticating the dialing client based on the second decryption information.
Optionally, the method further comprises:
the broadband access server is used for the dialer filter layer drive and the data interaction forwarding between the encryption and decryption platforms; and the internet surfing port is opened for the dialing client when the information passing through the authentication of the dialing client is received.
The embodiment of the invention also provides a dial-up networking method of the dial-up client, which is applied to the dial-up client, wherein a dialer filter layer driver is arranged in the dial-up client, and the method comprises the following steps:
the dialer filter layer is used for driving and capturing a first dialing request sent by the dialing client to the authentication server, and modifying the first dialing request to obtain a second dialing request;
Sending the second dialing request to an encryption and decryption platform so as to carry out dialing authentication on the dialing client;
the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
Optionally, the sending the second dialing request to the encryption and decryption platform to perform dialing authentication on the dialing client includes:
sending the second dialing request to an encryption and decryption platform, and receiving a random character string returned by the encryption and decryption platform based on the second dialing request;
capturing a third dialing request generated by the dialing client according to an encryption and decryption algorithm corresponding to the random character string, and modifying the third dialing request to obtain a fourth dialing request;
sending the fourth dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client;
the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and authenticating the dialing client based on the second decryption information in the authentication server; the authentication server is configured to authenticate the dial-up client based on the second decryption information.
The embodiment of the invention also provides a dial-up networking method of the dial-up client, which is applied to the encryption and decryption platform, wherein a dialer filter layer driver is arranged in the dial-up client, and the method comprises the following steps:
receiving a second dialing request sent by the dialer filter layer driver, wherein the second dialing request is obtained after the dialer filter layer driver modifies the first dialing request which is grabbed and sent by the dialing client to the authentication server;
decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at an authentication server based on the first decryption information; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
Optionally, the authenticating the dialing client at the authentication server based on the first decryption information includes:
when the first decryption information is obtained through decryption, a random character string is generated, and the random character string corresponds to an encryption and decryption algorithm;
transmitting the random character string to the dialing client; the dialer filter layer drives to grasp the third dialing request and modifies the third dialing request to obtain a fourth dialing request according to a third dialing request generated by the encryption and decryption algorithm corresponding to the random character string;
Receiving the fourth dialing request, and decrypting the fourth dialing request to obtain second decryption information;
and sending the second decryption information to the authentication server so as to carry out dialing authentication on the dialing client.
The embodiment of the invention also provides a device for dial-up networking of the dial-up client, which is applied to the dial-up client, wherein a dialer filter layer driver is arranged in the dial-up client, and the device comprises:
the grabbing module is used for grabbing a first dialing request sent by the dialing client to the authentication server and modifying the first dialing request to obtain a second dialing request;
the sending module is used for sending the second dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client;
the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
Optionally, the sending module is configured to send the second dialing request to an encryption and decryption platform, and receive a random string returned by the encryption and decryption platform based on the second dialing request; capturing a third dialing request generated by the dialing client according to an encryption and decryption algorithm corresponding to the random character string, and modifying the third dialing request to obtain a fourth dialing request; sending the fourth dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client; the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and authenticating the dialing client based on the second decryption information in the authentication server; the authentication server is configured to authenticate the dial-up client based on the second decryption information.
The embodiment of the invention also provides a device for dial-up networking of a dial-up client, which is applied to the encryption and decryption platform, wherein a dialer filter layer driver is arranged in the dial-up client, and the device comprises:
the receiving module is used for receiving a second dialing request sent by the dialer filter layer driver, wherein the second dialing request is obtained after the dialer filter layer driver modifies the first dialing request which is grabbed and sent by the dialing client to the authentication server;
the authentication module is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at an authentication server based on the first decryption information; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
Optionally, the authentication module is configured to generate a random string when the first decryption information is obtained by decryption, where the random string corresponds to an encryption and decryption algorithm; transmitting the random character string to the dialing client; the dialer filter layer drives to grasp the third dialing request and modifies the third dialing request to obtain a fourth dialing request according to a third dialing request generated by the encryption and decryption algorithm corresponding to the random character string; receiving the fourth dialing request, and decrypting the fourth dialing request to obtain second decryption information; and sending the second decryption information to the authentication server so as to carry out dialing authentication on the dialing client.
The embodiment of the invention also provides electronic equipment, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to realize the dial-up networking method of the dial-up client.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the dial-up networking method of the dial-up client when being executed by a processor.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, a dialing client of a system is used for sending out a first dialing request; the dialer filter layer driver is used for intercepting and modifying the first dialing request to obtain a second dialing request and sending the second dialing request to the encryption and decryption platform; the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and the authentication server is used for opening the internet port for the dialing client when the dialing client passes the authentication. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic diagram of a dial-up networking system according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating dial-up authentication based on a dial-up system according to an embodiment of the present invention;
FIG. 3 is a flow chart of steps of a method for dial-up networking of a dial-up client according to an embodiment of the present invention;
FIG. 4 is a flow chart of steps of a method of dial-up networking for another dial-up client according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for dial-up networking of a dial-up client according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another device for dial-up networking of a dial-up client according to an embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to avoid the condition that dial-up networking is initiated by a router and all computers connected in series behind the router pass authentication together, the embodiment of the invention provides a novel dial-up networking system which can comprise a dial-up client side, an encryption and decryption platform and an authentication server, wherein the dial-up client side is provided with a dialer filter layer driver; specifically, referring to fig. 1, fig. 1 shows a schematic structural diagram of a dial-up internet system according to an embodiment of the present invention.
The dialer filter layer drive and the encryption and decryption platform are matched with each other to encrypt and decrypt the dialing request, so that encryption and decryption in the authentication process are prevented from being carried out based on a client or a router; the encryption and decryption in the authentication process are stripped from the router and the client, the condition that dialing surfing is initiated through the router, and the authentication passing of all computers connected in series behind the router is realized can be avoided, so that a server can perform more accurate charging statistics.
In the embodiment of the invention, a dialing client is used for sending out a first dialing request; the dialer filter layer driver is used for intercepting and modifying the first dialing request to obtain a second dialing request and sending the second dialing request to the encryption and decryption platform;
The encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server;
and the authentication server is used for opening the internet port for the dialing client when the dialing client passes the authentication.
In some possible embodiments, when a user needs to surf the internet at a dialing client, an account number and a password can be input in the dialing client; then clicking a button of internet surfing authentication; in response to a user operation, the dialing client may generate a first dialing request according to the account number and the password, and send the first dialing to the authentication server.
For example, the account number and the password may be pre-stored in the dialing client; the user only needs to click a button of internet surfing authentication at the moment to trigger the dialing client to generate a first dialing request.
In yet another example, the account number and password may be pre-stored in the dial-up client, and the first dial-up request may be generated when the dial-up client is powered on, or when the dial-up client is switched from a dormant state to an operational state, which is not a limitation of the embodiments of the present invention.
When the dialing client sends a first dialing request to the authentication server, a dialer filter layer driver in the dialing client can intercept the first dialing request and modify the first dialing request to obtain a second dialing request; because the second dialing request is unaware of the dialing client, the second dialing request is not acquired by other applications in the dialing client, and is not intercepted by other dialing clients to perform authentication of dial-up networking.
As an example, the modification may be a modification of performing secondary encryption, or may be an adjustment of content of a message in the first dialing request, which is not limited in the embodiment of the present invention.
After the dialer filter layer driver generates a second dialing request, the second dialing request can be sent to the encryption and decryption platform; after receiving the second dialing request, the encryption and decryption platform can decrypt the second dialing request to obtain first decryption information; the first decryption information can include an account number and a password for dial-up networking.
Based on the first decryption information, the encryption and decryption platform can authenticate the dialing client in the authentication server; specifically, when authentication of the dialing client passes, the authentication server can open an internet port for the dialing client; thus, the dial-up client can surf the internet. Otherwise, if the authentication of the dialing client is not passed, a prompt that the authentication is not passed can be returned to the dialing client, and at the moment, the internet port is not opened for the dialing client.
In an embodiment of the invention, in order to improve the anti-string capability, the dial-up internet authentication can be performed by a secondary authentication mode; specifically, a plurality of encryption and decryption algorithms are stored in the encryption and decryption platform;
the encryption and decryption platform is used for generating a random character string when decrypting to obtain the first decryption information, wherein the random character string corresponds to an encryption and decryption algorithm; transmitting the random character string to a dialing client;
the dialing client is used for sending a third dialing request to the encryption and decryption platform by using an encryption and decryption algorithm corresponding to the random character string; the dialer filter layer driver is used for intercepting and modifying the third dialing request to obtain a fourth dialing request and transmitting the fourth dialing request to the encryption and decryption platform;
the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and sending the second decryption information to the authentication server for authentication;
and the authentication server is used for authenticating the dialing client based on the second decryption information.
In the embodiment of the invention, a plurality of encryption and decryption algorithms can be arranged in the encryption and decryption platform and the client in advance, and one of the encryption and decryption algorithms is randomly used for carrying out second authentication. Specifically, after the encryption and decryption platform decrypts the first decryption information, a random character string can be generated first, and the random character string can correspond to an encryption and decryption algorithm stored in the encryption and decryption platform.
As an example, after obtaining the account numbers of the user, the encryption and decryption platform may randomly obtain a seed (i.e. a random string) from the memory (initialize 1000, 0-F in the memory, change every 10 minutes, randomly obtain a seed for each account number, and the multiple account numbers may use the same seed)
After the random character string is generated, the encryption and decryption platform can send the random character string to the dialing client through the Replay Message attribute in the Radius Message.
As an example, the first decryption information may further include a flag indicating whether the request has an anti-string; when the request needs to avoid the condition that dialing internet surfing is initiated through a router and authentication passing is realized by all computers connected in series behind the router, a mark for preventing the serial connection can be set; otherwise, the anti-string flag is not set.
When the encryption and decryption platform recognizes that the request has the anti-string mark, a random character string can be generated, and the random character string is returned to the dialing client.
As an example, the encryption and decryption platform may encrypt the random string and then transmit the encrypted string to the dial-up client.
After detecting a random character string returned by the encryption and decryption platform, a dialer filter layer driver in the dialing client can firstly determine an encryption and decryption algorithm corresponding to the random character string and feed back the encryption and decryption algorithm to the dialing client; after receiving the encryption and decryption algorithm, the dialing client can use the encryption and decryption algorithm to generate a third dialing request, and the third dialing request can be generated after encrypting the account number and the password of the dial-up network by using the encryption and decryption algorithm corresponding to the random character string.
As an example, the dialer filter layer driver may extract a random string from the Replay Message to determine the corresponding encryption and decryption algorithm.
After generating the third dialing request, the dialing client may send the third dialing request to the authentication server; at this time, a dialer filter layer driver disposed in the dialing client may intercept the third dialing request and modify the third dialing request to obtain a fourth dialing request, where the fourth dialing request may include an account number and a password for dial-up networking, so as to perform authentication by the authentication server.
After generating a fourth dialing request, the dialer filter layer driver can send the fourth dialing request to the encryption and decryption platform; after receiving the fourth dialing request, the encryption and decryption platform may decrypt the fourth dialing request by using an encryption and decryption algorithm corresponding to the random string to obtain second decryption information, where the second decryption information may include an account number and a password of dial-up internet.
After obtaining the second decryption information, the encryption and decryption platform can send the second decryption information to the authentication server; after receiving the second decryption information, the second authentication server can use the account number and the password in the second authentication server to perform dial-up internet authentication on the dial-up client.
If the authentication is passed, the authentication server can open a network access port for the dial-up client; otherwise, a prompt of authentication failure is returned to the dialing client.
In one embodiment of the present invention, the system may further include:
the broadband access server is used for data interaction forwarding between the dialer filter layer drive and the encryption and decryption platform; and the internet port is opened for the dialing client when the information passing through the authentication of the dialing client is received.
In the embodiment of the invention, a broadband access server can be arranged between a dialer filter layer driver of a dialing client and an encryption and decryption platform, and data interaction between the dialer filter layer driver of the dialing client and the encryption and decryption platform can be performed through the broadband access server; specifically, after the dialer filter layer driver generates the second dialing request, the second dialing request may be sent to the broadband access server, and then forwarded to the encryption and decryption platform by the broadband access server.
After the encryption and decryption platform generates the random character string, the random character string can be forwarded to the dialing client through the broadband access server and is driven and intercepted by the dialer filter layer.
After the dialer filter layer driver generates the fourth dialing request, the fourth dialing request can be sent to the broadband access server, and then forwarded to the encryption and decryption platform by the broadband access server.
The authentication server can send the authentication result to the broadband access server when passing the authentication of the dial-up client; the broadband access server can open an internet port for the dialing client based on the authentication passing information of the dialing client, and returns the authentication passing information to the dialing client so as to inform the user that the current authentication is successful through the dialing client.
Illustratively, the first, second, third, and fourth dialing requests include necessary parameters such as:
1) Account number lowingame, for example: 083822341122.
2) Password PWD, for example: aabbbccdd.
3) Version keys VKEY, each version corresponding to a key of 64 bytes in length.
4) The TimeStamp TimeStamp is in binary format, 4 bytes long.
5) Version information Ver is a character, 4 bytes in length, for example 2007.
The random string may be a random challenge technique applied, and the generation algorithm of seed in the random challenge is as follows:
1. generating a random number R, wherein R is between (1, len (pwd)) and occupies 2 bytes in length, and R is used for dividing a user password into two parts:
F＝left(PWD，R)；
B＝left(PWD，len(PWD)–R)；
2. the first partial form of the encryption information is constructed using TimeStamp, VKey, F as follows:
X＝TimeStamp+VKey(0，64-4-len(F))+F
Namely: the first 4 bytes of the key are replaced with TimeStamp, the latter part is replaced with the intercepted user password F.
3 constructing the second portion of the encryption information using LoginName, vkey, B
Y＝LoginName+VKey(0，64–len(LoginName)-len(B))+B
Namely: the front part of the key is replaced by the LoginName, and the latter part is replaced by the intercepted user password B.
4. Combining the two parts of encryption information, and carrying out MD5 encryption to obtain an MD5 encryption binary result:
M1＝MD5(X+Y)；
5. and (5) carrying out MD5 encryption on the M1 again, and acquiring the first 16-bit binary ASIIC code as a final encryption result.
RS＝LEFT(MD5(M1)，16)；
Encryption and decryption algorithm of encryption and decryption platform:
related data:
the random number R1 is between 0 and 15;
constant p1=5;
selection algorithm:
firstly, randomly generating R;
r2＝2*r1+5；
r3＝2*r2+r1-4；
r4＝2*r3-r2；
encryption algorithm:
the sequence of the spliced encryption source character strings is as follows
[ (r+1) -R1) + (r+r+p1) ×p1 (16-ary character) + [ R1, R2) + [ R2, R3) + [ R3, end);
the substrings are all intercepted in the forward direction, namely are obtained from small to large.
Illustratively, as shown in fig. 2, the gateway may consist of a dialup client deployed with a dialup filter layer driver, a BRAS (Broadband Remote Access Server, broadband access server), an encryption and decryption platform, and a Radius (Remote Authentication Dial In User Service), a remote authentication dial-in user service server (i.e., the authentication server described above). The system realizes the authentication of dial-up networking by the following steps:
First authentication:
1. initiating dialing: the dialer client side interacts with the dialer filter layer in a driving way to generate a first dialing request; the time points of the interaction process are distributed in a discrete manner in the program, and all links such as starting, waiting and executing of the program participate in the program.
2. Grabbing and modifying: the filter layer driver makes no perceived modification to the first dialing request by grabbing packets.
3. And (3) transmitting: and sending the modified second dialing request to the BRAS.
4. And (3) forwarding: and the BRAS generates a Radius authentication request according to the second dialing request and sends the Radius authentication request to the encryption and decryption platform.
5. Random challenge: the encryption and decryption platform generates a random seed challenge.
6. And (5) returning challenge information: and issuing a random seed challenge BRAS through a ReplayMessage attribute in the Radius message to return a Radius authentication message.
7. And (3) returning an authentication message: the BRAS returns an authentication result.
8. Obtaining challenge information: the dialer filter layer drives to extract the Replay Message content after capturing the authentication Message returned by the BRAS, extracts relevant encryption information from the Replay Message, and returns authentication failure.
9. Returning encryption information: the dialer filter layer driver returns the relevant encrypted information to the client.
Second authentication:
10. Performing second authentication by using the encryption information: the dialing client initiates a third dialing request, and the request process uses a specified algorithm, wherein the algorithm related information is based on the encryption information returned by the driver of the dialer filter layer.
11. Grabbing and modifying: the dialer filter layer is driven to grasp the third dialing request and modify it.
12. And (3) transmitting: the dialer filter layer driver sends the modified information to the BRAS.
13. And (3) forwarding: and the BRAS generates a Radius authentication message according to the received information and sends the Radius authentication message to the encryption and decryption platform.
14. Decryption: and the encryption and decryption platform decrypts.
15. Transmitting a Radius authentication message: and reassembling the Radius authentication message and sending the Radius authentication message to the Radius server for final authentication.
16. And (5) returning an authentication result: and the Radius server returns an authentication result to the BRAS.
17. And (5) returning an authentication result: the BRAS returns the authentication result to the dialer filter layer for driving.
18. And (5) returning an authentication result: the dialer filter layer driver returns the authentication result to the client.
In the embodiment of the invention, a dialing client of a system is used for sending out a first dialing request; the dialer filter layer driver is used for intercepting and modifying the first dialing request to obtain a second dialing request and sending the second dialing request to the encryption and decryption platform; the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and the authentication server is used for opening the internet port for the dialing client when the dialing client passes the authentication. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.
Based on the system, the embodiment of the invention also provides a dial-up networking method of the dial-up client, which can be applied to the dial-up client, wherein a dialer filter layer driver is arranged in the dial-up client; referring to fig. 3, a flowchart illustrating steps of a method for dial-up networking of a dial-up client according to an embodiment of the present invention may include the following steps:
step 301, a dialer filter layer drives to grasp a first dialing request sent by a dialing client to an authentication server, and modifies the first dialing request to obtain a second dialing request;
in some possible embodiments, the dialing client may send the first dialing to the authentication server after generating the first dialing request.
When the dialing client sends a first dialing request to the authentication server, a dialer filter layer driver in the dialing client can intercept the first dialing request and modify the first dialing request to obtain a second dialing request; because the second dialing request is unaware of the dialing client, the second dialing request is not acquired by other applications in the dialing client, and is not intercepted by other dialing clients to perform authentication of dial-up networking.
As an example, the modification may be a modification of performing secondary encryption, or may be an adjustment of content of a message in the first dialing request, which is not limited in the embodiment of the present invention.
Step 302, sending a second dialing request to the encryption and decryption platform to perform dialing authentication on the dialing client; the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client.
After the dialer filter layer driver generates a second dialing request, the second dialing request can be sent to the encryption and decryption platform; after receiving the second dialing request, the encryption and decryption platform can decrypt the second dialing request to obtain first decryption information; the first decryption information can include an account number and a password for dial-up networking.
Based on the first decryption information, the encryption and decryption platform can authenticate the dialing client in the authentication server; specifically, when authentication of the dialing client passes, the authentication server can open an internet port for the dialing client; thus, the dial-up client can surf the internet.
Otherwise, if the authentication of the dialing client is not passed, a prompt that the authentication is not passed can be returned to the dialing client, and at the moment, the internet port is not opened for the dialing client.
In one embodiment of the present invention, step 302 may be implemented by the following sub-steps:
and step 11, sending the second dialing request to the encryption and decryption platform, and receiving the random character string returned by the encryption and decryption platform based on the second dialing request.
After the dialer filter layer driver generates the second dialing request, the second dialing request can be sent to the encryption and decryption platform.
After receiving the second dialing request, the encryption and decryption platform can generate a random character string and return the random character string to the dialing client.
And step 12, capturing a third dialing request generated by the dialing client according to the encryption and decryption algorithm corresponding to the random character string, and modifying the third dialing request to obtain a fourth dialing request.
After detecting a random character string returned by the encryption and decryption platform, a dialer filter layer driver in the dialing client can firstly determine an encryption and decryption algorithm corresponding to the random character string and feed back the encryption and decryption algorithm to the dialing client; after receiving the encryption and decryption algorithm, the dialing client can use the encryption and decryption algorithm to generate a third dialing request.
After generating the third dialing request, the dialing client may send the third dialing request to the authentication server; at this time, the dialer filter layer driver disposed in the dialing client may intercept the third dialing request and modify the third dialing request to obtain a fourth dialing request.
Step 13, sending the fourth dialing request to the encryption and decryption platform to perform dialing authentication on the dialing client; the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and authenticating the dialing client based on the second decryption information in the authentication server; the authentication server is used for authenticating the dialing client based on the second decryption information.
After generating a fourth dialing request, the dialer filter layer driver can send the fourth dialing request to the encryption and decryption platform; after receiving the fourth dialing request, the encryption and decryption platform can decrypt the fourth dialing request by using an encryption and decryption algorithm corresponding to the random character string to obtain second decryption information.
Then, the encryption and decryption platform can send the second decryption information to the authentication server; after receiving the second decryption information, the second authentication server can use the account number and the password in the second authentication server to perform dial-up internet authentication on the dial-up client.
If the authentication is passed, the authentication server can open a network access port for the dial-up client; otherwise, a prompt of authentication failure is returned to the dialing client.
In the embodiment of the invention, a dialer filter layer drives to grasp a first dialing request sent by a dialing client to an authentication server, and modifies the first dialing request to obtain a second dialing request; sending a second dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client; the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.
Based on the system, the embodiment of the invention also provides a dial-up networking method applied to the dial-up client of the encryption and decryption platform; referring to fig. 4, a flowchart illustrating steps of another method for dial-up networking of a dial-up client according to an embodiment of the present invention may include the steps of:
Step 401, receiving a second dialing request sent by a dialer filter layer driver, where the second dialing request is obtained after the dialer filter layer driver modifies a first dialing request sent by the captured and dialed client to the authentication server.
After generating the first dialing request, the dialing client can send the first dialing to the authentication server; when the dialing client sends the first dialing request to the authentication server, a dialer filter layer driver in the dialing client can intercept the first dialing request and modify the first dialing request to obtain a second dialing request.
After the dialer filter layer driver generates the second dialing request, the second dialing request can be sent to the encryption and decryption platform.
Step 402, decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at an authentication server based on the first decryption information; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client.
After receiving the second dialing request, the encryption and decryption platform can decrypt the second dialing request to obtain the first decryption information.
Based on the first decryption information, the encryption and decryption platform can authenticate the dialing client in the authentication server; specifically, when authentication of the dialing client passes, the authentication server can open an internet port for the dialing client; thus, the dial-up client can surf the internet.
Otherwise, if the authentication of the dialing client is not passed, a prompt that the authentication is not passed can be returned to the dialing client, and at the moment, the internet port is not opened for the dialing client.
In one embodiment of the present invention, step 402 may be implemented by the following sub-steps:
and 21, generating a random character string when the first decryption information is obtained through decryption, wherein the random character string corresponds to an encryption and decryption algorithm.
After the encryption and decryption platform decrypts the second dialing request to obtain the first decryption information, the encryption and decryption platform can judge whether the request has the anti-string mark or not based on the first decryption information; if so, a random string may be generated; if not, the first decryption information may be sent to an authentication server for authentication.
Step 22, the random character string is sent to the dialing client; the dialing client side captures the third dialing request by driving a dialer filter layer according to the third dialing request generated by the encryption and decryption algorithm corresponding to the random character string, and modifies the third dialing request to obtain a fourth dialing request.
After the encryption and decryption platform generates the random character string, the random character string can be returned to the dialing client.
After detecting a random character string returned by the encryption and decryption platform, a dialer filter layer driver in the dialing client can firstly determine an encryption and decryption algorithm corresponding to the random character string and feed back the encryption and decryption algorithm to the dialing client; after receiving the encryption and decryption algorithm, the dialing client can use the encryption and decryption algorithm to generate a third dialing request.
After generating the third dialing request, the dialing client may send the third dialing request to the authentication server; at this time, the dialer filter layer driver disposed in the dialing client may intercept the third dialing request and modify the third dialing request to obtain a fourth dialing request.
The dialer filter layer driver may send the fourth dialing request to the encryption and decryption platform.
And a substep 23, receiving the fourth dialing request, and decrypting the fourth dialing request to obtain the second decryption information.
After receiving the fourth dialing request, the encryption and decryption platform can decrypt the fourth dialing request by using an encryption and decryption algorithm corresponding to the random character string to obtain second decryption information.
And a substep 24 of sending the second decryption information to the authentication server to perform dial authentication on the dial-up client.
Then, the encryption and decryption platform can send the second decryption information to the authentication server; after receiving the second decryption information, the second authentication server can use the account number and the password in the second authentication server to perform dial-up internet authentication on the dial-up client.
If the authentication is passed, the authentication server can open a network access port for the dial-up client; otherwise, a prompt of authentication failure is returned to the dialing client.
In the embodiment of the invention, the encryption and decryption platform receives a second dialing request sent by a dialer filter layer driver, wherein the second dialing request is obtained after the dialer filter layer driver modifies a first dialing request sent by a captured and dialed client to an authentication server; decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information at an authentication server; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.
Referring to fig. 5, a schematic structural diagram of a device for dial-up networking of a dial-up client according to an embodiment of the present invention is shown, and the device is applied to the dial-up client, and a dialer filter layer driver is disposed in the dial-up client, and may include the following modules:
the grasping module 501 is configured to grasp a first dialing request sent by a dialing client to an authentication server, and modify the first dialing request to obtain a second dialing request;
the sending module 502 is configured to send a second dialing request to the encryption and decryption platform, so as to perform dialing authentication on the dialing client;
the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client.
In an optional embodiment of the present invention, the sending module 502 is configured to send the second dialing request to the encryption and decryption platform, and receive a random string returned by the encryption and decryption platform based on the second dialing request; capturing a third dialing request generated by the dialing client according to an encryption and decryption algorithm corresponding to the random character string, and modifying the third dialing request to obtain a fourth dialing request; sending a fourth dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client; the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and authenticating the dialing client based on the second decryption information in the authentication server; the authentication server is used for authenticating the dialing client based on the second decryption information.
In the embodiment of the invention, a dialer filter layer drives to grasp a first dialing request sent by a dialing client to an authentication server, and modifies the first dialing request to obtain a second dialing request; sending a second dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client; the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.
Referring to fig. 6, a schematic structural diagram of another device for dial-up networking of a dial-up client according to an embodiment of the present invention is shown, and the device is applied to an encryption and decryption platform, and a dialer filter layer driver is deployed in the dial-up client, and may include the following modules:
the receiving module 601 is configured to receive a second dialing request sent by the dialer filter layer driver, where the second dialing request is obtained after the dialer filter layer driver modifies a first dialing request sent by the captured and dialed client to the authentication server;
the authentication module 602 is configured to decrypt the second dialing request to obtain first decryption information, and authenticate the dialing client at the authentication server based on the first decryption information; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client.
In an alternative embodiment of the present invention, the authentication module 602 is configured to generate a random string when decrypting the first decryption information, where the random string corresponds to an encryption and decryption algorithm; transmitting the random character string to a dialing client; the dialing client side captures a third dialing request according to a third dialing request generated by an encryption and decryption algorithm corresponding to the random character string, and the dialer filter layer drives the third dialing request to be modified to obtain a fourth dialing request; receiving a fourth dialing request, and decrypting the fourth dialing request to obtain second decryption information; and sending the second decryption information to an authentication server to perform dialing authentication on the dialing client.
In the embodiment of the invention, the encryption and decryption platform receives a second dialing request sent by a dialer filter layer driver, wherein the second dialing request is obtained after the dialer filter layer driver modifies a first dialing request sent by a captured and dialed client to an authentication server; decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information at an authentication server; and when the authentication server passes the authentication of the dialing client, opening a surfing port for the dialing client. By the embodiment of the invention, the condition that dial-up networking is initiated by the router and authentication passing of all computers connected in series behind the router is realized can be avoided, so that a service provider can perform more accurate charging statistics.
The embodiment of the invention also provides an electronic device, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to realize the dial-up networking method of the dial-up client.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the dial-up networking method of the dial-up client.
For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The foregoing has outlined rather broadly the principles and embodiments of the present invention in order that the detailed description of the invention that follows may be better understood, and in order that the present invention may be better suited for use in a system that uses the principles and embodiments of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims (11)

1. The dial-up internet system is characterized by comprising a dial-up client side, an encryption and decryption platform and an authentication server, wherein the dial-up client side is provided with a dialer filter layer driver;
the dialing client is used for sending out a first dialing request; the dialer filter layer driver is used for intercepting and modifying the first dialing request to obtain a second dialing request and sending the second dialing request to the encryption and decryption platform;
the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at the authentication server based on the first decryption information;
the authentication server is used for opening a network access port for the dialing client when the dialing client passes the authentication.
2. The system of claim 1, wherein the encryption and decryption platform stores a plurality of encryption and decryption algorithms;
the encryption and decryption platform is used for generating a random character string when decrypting to obtain the first decryption information, wherein the random character string corresponds to an encryption and decryption algorithm; transmitting the random character string to the dialing client;
the dialing client is used for sending a third dialing request to the encryption and decryption platform by using an encryption and decryption algorithm corresponding to the random character string; the dialer filter layer driver is used for intercepting and modifying the third dialing request to obtain a fourth dialing request and sending the fourth dialing request to the encryption and decryption platform;
The encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and sending the second decryption information to the authentication server for authentication;
the authentication server is used for authenticating the dialing client based on the second decryption information.
3. The system of claim 1, further comprising:
the broadband access server is used for the dialer filter layer drive and the data interaction forwarding between the encryption and decryption platforms; and the internet surfing port is opened for the dialing client when the information passing through the authentication of the dialing client is received.
4. A method for dial-up networking of a dial-up client, characterized in that the method is applied to the dial-up client, a dialer filter layer driver is arranged in the dial-up client, and the method comprises:
the dialer filter layer is used for driving and capturing a first dialing request sent by the dialing client to the authentication server, and modifying the first dialing request to obtain a second dialing request;
sending the second dialing request to an encryption and decryption platform so as to carry out dialing authentication on the dialing client;
The encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
5. The method of claim 4, wherein the sending the second dialing request to the encryption and decryption platform to dial-up authentication the dialing client comprises:
sending the second dialing request to an encryption and decryption platform, and receiving a random character string returned by the encryption and decryption platform based on the second dialing request;
capturing a third dialing request generated by the dialing client according to an encryption and decryption algorithm corresponding to the random character string, and modifying the third dialing request to obtain a fourth dialing request;
sending the fourth dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client;
the encryption and decryption platform is used for decrypting the fourth dialing request to obtain second decryption information, and authenticating the dialing client based on the second decryption information in the authentication server; the authentication server is configured to authenticate the dial-up client based on the second decryption information.
6. A method for dial-up networking of a dial-up client, which is applied to an encryption and decryption platform, wherein a dialer filter layer driver is deployed in the dial-up client, the method comprising:
receiving a second dialing request sent by the dialer filter layer driver, wherein the second dialing request is obtained after the dialer filter layer driver modifies the first dialing request which is grabbed and sent by the dialing client to the authentication server;
decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at an authentication server based on the first decryption information; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
7. The method of claim 6, wherein authenticating the dial-up client at an authentication server based on the first decryption information comprises:
when the first decryption information is obtained through decryption, a random character string is generated, and the random character string corresponds to an encryption and decryption algorithm;
transmitting the random character string to the dialing client; the dialer filter layer drives to grasp the third dialing request and modifies the third dialing request to obtain a fourth dialing request according to a third dialing request generated by the encryption and decryption algorithm corresponding to the random character string;
Receiving the fourth dialing request, and decrypting the fourth dialing request to obtain second decryption information;
and sending the second decryption information to the authentication server so as to carry out dialing authentication on the dialing client.
8. A device for dial-up networking of a dial-up client, characterized in that the device is applied to the dial-up client, a dialer filter layer driver is arranged in the dial-up client, and the device comprises:
the grabbing module is used for grabbing a first dialing request sent by the dialing client to the authentication server and modifying the first dialing request to obtain a second dialing request;
the sending module is used for sending the second dialing request to the encryption and decryption platform so as to carry out dialing authentication on the dialing client;
the encryption and decryption platform is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client based on the first decryption information in the authentication server; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
9. A device for dial-up networking of a dial-up client, which is applied to an encryption and decryption platform, wherein a dialer filter layer driver is deployed in the dial-up client, the device comprising:
The receiving module is used for receiving a second dialing request sent by the dialer filter layer driver, wherein the second dialing request is obtained after the dialer filter layer driver modifies the first dialing request which is grabbed and sent by the dialing client to the authentication server;
the authentication module is used for decrypting the second dialing request to obtain first decryption information, and authenticating the dialing client at an authentication server based on the first decryption information; and when the authentication server passes the authentication of the dialing client, opening an internet port for the dialing client.
10. An electronic device comprising a processor, a memory and a computer program stored on the memory and capable of running on the processor, which when executed by the processor implements a method of dial-up networking for a dial-up client according to any of claims 4 to 7.
11. A computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, which computer program, when executed by a processor, implements a method of dial-up networking of a dial-up client according to any of claims 4 to 7.
CN202311321703.XA 2023-10-12 2023-10-12 Dial-up networking system and related methods, apparatus, devices and media Pending CN117459492A (en)

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